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[SCSI] lpfc 8.3.28: Add Loopback support for SLI4 adapters

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- Add Basic support for SLI4 Loopback.
  (CR 124951, 125766, 124951, 125843, 125832, 125843)
- Added missing protection in setting/clearing of phba->link_flag bit
  field (CR 125994)
- Use link type and link number obtained from READ_CONFIG mailbox
  command. (CR 126264)

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart
2011-12-13 13:23:09 -05:00
committed by James Bottomley
parent 2e90f4b5a2
commit 1b51197d0f
9 changed files with 472 additions and 169 deletions
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60
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@@ -1074,6 +1074,12 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
mempool_free(pmb, phba->mbox_mem_pool);
/* don't perform discovery for SLI4 loopback diagnostic test */
if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(phba->hba_flag & HBA_FCOE_MODE) &&
(phba->link_flag & LS_LOOPBACK_MODE))
return;
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
vport->fc_flag & FC_PUBLIC_LOOP &&
!(vport->fc_flag & FC_LBIT)) {
@@ -2847,10 +2853,10 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
goto fail_free_mem;
goto out_free_mem;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto fail_free_mem;
goto out_free_mem;
}
/* The VPI is implicitly registered when the VFI is registered */
spin_lock_irq(shost->host_lock);
@@ -2860,6 +2866,13 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
/* In case SLI4 FC loopback test, we are ready */
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(phba->link_flag & LS_LOOPBACK_MODE)) {
phba->link_state = LPFC_HBA_READY;
goto out_free_mem;
}
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
/* For private loop just start discovery and we are done. */
if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
@@ -2874,7 +2887,7 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
}
}
fail_free_mem:
out_free_mem:
mempool_free(mboxq, phba->mbox_mem_pool);
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
@@ -3235,15 +3248,14 @@ lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
} else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
LPFC_ATT_LINK_DOWN) {
phba->fc_stat.LinkDown++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
if (phba->link_flag & LS_LOOPBACK_MODE)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1308 Link Down Event in loop back mode "
"x%x received "
"Data: x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag);
}
else {
else
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1305 Link Down Event x%x received "
"Data: x%x x%x x%x x%x x%x\n",
@@ -3251,7 +3263,6 @@ lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
phba->pport->port_state, vport->fc_flag,
bf_get(lpfc_mbx_read_top_mm, la),
bf_get(lpfc_mbx_read_top_fa, la));
}
lpfc_mbx_issue_link_down(phba);
}
if ((bf_get(lpfc_mbx_read_top_mm, la)) &&
@@ -5682,7 +5693,7 @@ out:
*
* This function frees memory associated with the mailbox command.
*/
static void
void
lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
@@ -5734,7 +5745,6 @@ lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
int
lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
@@ -5770,35 +5780,9 @@ lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_all_cmd(phba);
/* Unregister VFI */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2556 UNREG_VFI mbox allocation failed"
"HBA state x%x\n", phba->pport->port_state);
return -ENOMEM;
}
lpfc_unreg_vfi(mbox, phba->pport);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2557 UNREG_VFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mbox, phba->mbox_mem_pool);
return -EIO;
}
shost = lpfc_shost_from_vport(phba->pport);
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
return 0;
/* Unregister the physical port VFI */
rc = lpfc_issue_unreg_vfi(phba->pport);
return rc;
}
/**